Description

High-speed Photodiode, Photodetector, Pulse Laser Dedicated, Less than 500ps Rising Edge, Imported Core

High speed photodiode detector

1 Adopt high speed photodiode from Binsong company

2 Wavelength response range：300nm～1100nm

3 The detector material is silicon，The sensitive diameter of the probe is less than0.5mm，The default is free space light entering the probe；If the user needs，It can be pasted in front of the probeFCflange，So that users can access the detector directly with optical fiber。Please explain in advance when purchasing，The default delivery probe does not carryFCflange

4 cut-off frequency：>1GHz

5 Rising edge: <300ps，Falling edge: <500ps

6 Output voltage range：0-12V（12VVoltage supply）

7 The output impedance inside the detector is1MOhm，If the user needs to obtain the appropriate response speed，A suitable resistor must be connected in parallel at the output。To maximize the response frequency of the detector，Its output must be in parallel50Ohm-100Ohmic resistance（It can be connected in parallel50Ohmic terminal，Bandwidth greater than or equal to300MHzThe oscilloscope itself also has50Ohmic impedance selection）。The smaller the resistance of parallel output，The higher the peak power of the incident optical signal is required，Otherwise, its output voltage will be lower，Users need to find a balance between bandwidth and voltage。generally speaking，The detection pulse width is several hundred nanoseconds、Picosecond or femtosecond laser pulses，The output of the detector needs to be connected in parallel50Ohm-100Ohmic resistance；If the detector500usreach500nsLaser pulse，The detector output needs to be connected in parallel1k-10kOhmic resistance；If we detect a few hundredms-500usLaser pulse，The detector outputs need to be connected in parallel10k-100kOhmic resistance；If the detection is greater than500msOr continuous laser，Parallel resistance is not required at the output of the detector，However, if the output voltage is too high，Or to eliminate the influence of natural light，It can be paralleled properly100kResistance or potentiometer，One can reduce the external noise，Second, the amplitude of the output voltage can be limited。

8 Supply voltage9～24VDC

9 It can be used to detect femtosecond or picosecond laser pulses，It can also detect nanosecond laser pulses andusormsQuasi continuous laser，It can also be used to detect the intensity of continuous laser or non laser source directly

Delivery list：One photodetector，12VOne DC regulated power supply，For two。

The figure below shows the waveform of femtosecond oscillator：

The figure below shows the nanosecond modulation of the measurementQWaveform of laser：

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